<template>
    <div class="singer">
      <list-view :data="singers" @select="selectSinger" ref="list"></list-view>
      <router-view></router-view>
    </div>
</template>
<script>
import { ERR_OK } from "api/config";
import { getSingerList } from "api/singer";
import Singer from 'common/js/singer'
import ListView from 'base/listview/listview'
import {mapMutations} from 'vuex'
const HOT_SINGER_LEN=10
const HOT_NAME='热门'
export default {
  components:{
    ListView 
  },
  data() {
    return {
      singers: []
    };
  },
  created() {
    this._getSingerList();
  },
  methods: {
  selectSinger(singer) {
  
    this.$router.push({
      path:`/singer/${singer.id}`
    })
     this.setSinger(singer)
 },
    _getSingerList() {
      getSingerList().then(res => {
       
        if (res.code == ERR_OK) {
          this.singers = this._normalizeSinger(res.data.list);
        }
       
      
      });
    },
    _normalizeSinger(list) {
      let map = {
        hot: {
          title: HOT_NAME,
          items: []
        }
      };
      list.forEach((item, index) => {
        if (index < HOT_SINGER_LEN) {
          map.hot.items.push(
            new Singer({
              name: item.Fsinger_name,
              id: item.Fsinger_mid
            })
          );
        }
        const key=item.Findex
        if(!map[key]){
            map[key]={
                title:key,
                items:[]
            }
        }
        map[key].items.push(new Singer({
               name: item.Fsinger_name,
              id: item.Fsinger_mid
        }))
     
      })
      let ret=[]
      let hot=[]
      for(let key in map){
          let val=map[key]
          if(val.title.match(/[a-zA-Z]/)){
              ret.push(val)
          }else if(val.title===HOT_NAME){
              hot.push(val)
          }
      }
      
      ret.sort((a,b)=>{
         
          return a.title.charCodeAt(0)-b.title.charCodeAt(0)
      })
      return hot.concat(ret)
    
    },
    ...mapMutations({
      setSinger:'SET_SINGER'
    })
  }
};
</script>
<style lang="stylus" scoped>
.singer
    position: fixed
    top: 88px
    bottom: 0
    width: 100%
</style>


